Answer:110$
Step-by-step explanation: well 11/2 hours equals 19800 seconds and 19800 seconds equals 5 hours and a half so 20 x 5 equals 100 and ya so and half 20 is 10 so 110$
Answer:
Factoring
Step-by-step explanation:




and 
39x^3 = 13*3*x*x*x
-6x^2 = 2*3*x*x*-1
-3x = 3*x*-1
so in all these factorizations, 3*x is common. so 3x is the common factor.
by seperating the common factor,
3x(13x^2 - 2x-1)
will be the factorization.
xy + 5x - 5y - 25
=x (y+5) -5 (y+5)
=(x-5) (y+5)
hope I helped ya!!!